[ It's a relief Dedue survived in more than one of their memories. He knows Dimitri would have been devastated if he knew his treasured friend had died on his account for any reason. So far, most of their memories seem to align -at least, as far as the Blue Lions are concerned. Edelgard and Claude had both remembered him joining their house instead, which had complicated matters considerably. He hadn't wanted to let them think they were abandoned or to ruin whatever relationship they had with their own Byleths previously. The last thing anyone should be made to feel in a place like this is alone.

His head nods after a moment as he takes in Ashe's other question, though his expression crinkles slightly, thinking on it. ]

Dimitri, Sylvain, and Felix from our memories. Ferdinand, Hubert, and Edelgard are younger. Caspar is older. They recall female Byleth joining and leading their house. Claude is contemporary with us, but his Byleth also joined the Golden Deers. Linhardt is an expatriate and joined the Golden Deers. Rhea was freed by Claude, Manuela joined the Blue Lions, and Seteth is yet unknown but he's acquainted with the female Byleth. A female Byleth used to be here.

[ It's all a complicated mess as most of those figures had joined the Blue Lions along with him, but barely anyone has any memory of it. ]

I don't know why there are many simultaneous timelines.